diff --git a/app/presenters/corporate_information_page_presenter.rb b/app/presenters/corporate_information_page_presenter.rb
index 252146e14..b789b9466 100644
--- a/app/presenters/corporate_information_page_presenter.rb
+++ b/app/presenters/corporate_information_page_presenter.rb
@@ -5,6 +5,12 @@ class CorporateInformationPagePresenter < ContentItemPresenter
   include ContentItem::OrganisationBranding
   include ContentItem::CorporateInformationGroups
 
+  ORG_CHANGING_BANNER_BASE_PATHS = %w[
+    /government/organisations/department-for-business-energy-and-industrial-strategy/about
+    /government/organisations/department-for-international-trade/about
+    /government/organisations/department-for-business-energy-and-industrial-strategy/about
+  ].freeze
+
   def page_title
     page_title = super
     page_title += " - #{default_organisation['title']}" if default_organisation
@@ -22,6 +28,10 @@ def contents_items
     super + extra_headings
   end
 
+  def show_organisation_changing_banner?
+    ORG_CHANGING_BANNER_BASE_PATHS.include?(base_path)
+  end
+
 private
 
   def extra_headings
diff --git a/app/views/content_items/corporate_information_page.html.erb b/app/views/content_items/corporate_information_page.html.erb
index e3e9982cf..bdf91e4b3 100644
--- a/app/views/content_items/corporate_information_page.html.erb
+++ b/app/views/content_items/corporate_information_page.html.erb
@@ -4,6 +4,15 @@
   ) %>
 <% end %>
 
+<% if @content_item.show_organisation_changing_banner? %>
+  <div class="govuk-width-container govuk-!-margin-top-8">
+    <%= render "govuk_publishing_components/components/notice", {
+      title: sanitize('This organisation is changing. Read <a href="https://www.gov.uk/government/news/making-government-deliver-for-the-british-people">the latest updates on government departments</a> or visit the <a href="https://twitter.com/10DowningStreet">10 Downing Street Twitter feed</a>.'),
+      margin_bottom: 3,
+    } %>
+  </div>
+<% end %>
+
 <% @additional_body = capture do %>
   <% if @content_item.corporate_information? %>
     <%= @content_item.corporate_information_heading_tag %>
diff --git a/test/presenters/corporate_information_page_presenter_test.rb b/test/presenters/corporate_information_page_presenter_test.rb
index 33c25766e..b241c5cd8 100644
--- a/test/presenters/corporate_information_page_presenter_test.rb
+++ b/test/presenters/corporate_information_page_presenter_test.rb
@@ -77,5 +77,15 @@ def schema_name
       assert presented_item.further_information.include?(information_charter["base_path"])
       assert presented_item.further_information.include?(information_charter["title"])
     end
+
+    test "returns true for about pages that require a banner" do
+      presented_item = presented_item(schema_name, "base_path" => "/government/organisations/department-for-business-energy-and-industrial-strategy/about")
+      assert presented_item.show_organisation_changing_banner?
+    end
+
+    test "returns false for about pages that don't require a banner" do
+      presented_item = presented_item(schema_name, "base_path" => "/government/organisations/a-random-org/about")
+      assert_not presented_item.show_organisation_changing_banner?
+    end
   end
 end